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https://hdl.handle.net/2440/44416
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Type: | Journal article |
Title: | Efficacy of orally administered praziquantel against Zeuxapta seriolae and Benedenia seriolae (Monogenea) in yellowtail kingfish Seriola lalandi |
Author: | Williams, R. Ernst, I. Chambers, C. Whittington, I. |
Citation: | Diseases of Aquatic Organisms, 2007; 77(3):199-205 |
Publisher: | Inter-research |
Issue Date: | 2007 |
ISSN: | 0177-5103 1616-1580 |
Statement of Responsibility: | Rissa E. Williams, Ingo Ernst, Clinton B. Chambers, Ian D. Whittington |
Abstract: | We investigated the efficacy of praziquantel (PZQ) administered orally to yellowtail kingfish (Seriola lalandi in sea-cage aquaculture in South Australia) against the monogeneans Zeuxapta seriolae and Benedenia seriolae infesting gills and skin, respectively. PZQ was administered to fish by surface-coating feed pellets (Trial 1) or by direct intubation of the stomach (Trial 2). In both trials 4 daily doses were administered: 50 and 75 mg kg–1 body weight (BW) d–1 for 6 d, and 100 and 150 mg kg–1 BW d–1 for 3 d. Mean parasite intensity was compared between medicated fish and unmedicated control fish. In Trial 1, fish fed lower daily doses of PZQ for 6 d (50 and 75 mg kg–1 BW d–1) had fewer Z. seriolae and B. seriolae than fish fed higher daily doses for 3 d (100 and 150 mg kg–1 BW d–1). Fish rejected feed pellets surface-coated with PZQ, suggesting PZQ affected palatability of feed, and may explain differences in efficacy between treatments. In Trial 2, where PZQ was administered by intubation, there were fewer Z. seriolae and B. seriolae in medicated fish than control fish. Intubated PZQ was also effective against newly recruited Z. seriolae and B. seriolae. PZQ could be developed as a useful treatment for Z. seriolae and B. seriolae parasitising S. lalandi in sea-cage aquaculture if suspected palatability problems are resolved. |
Keywords: | Monogenea Sea-cage aquaculture Oral treatment Anthelmintic Seriola lalandi |
Description: | Copyright © 2007 Inter-Research. |
DOI: | 10.3354/dao01824 |
Published version: | http://dx.doi.org/10.3354/dao01824 |
Appears in Collections: | Aurora harvest Earth and Environmental Sciences publications Environment Institute publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_44416.pdf | Published version | 178.97 kB | Adobe PDF | View/Open |
hdl_44416_version.pdf | Version information | 37.45 kB | Adobe PDF | View/Open |
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